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(No Model.)

13.11. SAGENDORPH.

Y SHEET METAL' ROOF.'

` vPaeninad'f'eb.1,1887. A y

I No. 357,041.

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UNITED STATES VPATENT OFFICE.

FRANKFE. SAGENDORPH, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO E. STARR LLOYD, OF SAME PLACE.

SHEET-METAL ROOF."

SPECIFICATION forming par of Leners Parent No. 357,041, dated February 1, 1887.v

Application filed November 26, 1886. Serial No. 219,873. (No model.)

To all whom it may concern,.-

Be it known that I, FRANK. E. SAGENDORPH, of Chicago, in the county of Cook and State of Illinois, have invented certain new and usefull Improvements in Sheet-Metal Roofs, of which the following is a description, reference being had to the accompanying drawings, forming a part of this specification, inwhichM Figure 1 is a plan view of a portion of a sheet-metal roof, partly completed and partly incourse of construction, and showing my improvement applied thereto. Fig. 2 isa side or edge view of the same. Fig. 3 is a perspective view of a portion of a sheet of roofing material, showing the iiangesupon one side bent ready for use. Fig. 4 is alike view of the opposite side of a sheet, showing my improved locking-clamp as applied thereto when ready for use. Fig. 5 is a perspective view in detail of said clamp; and Fig. 6 is an enlarged end view in detail of a finished seam, to more p clearly illustrate the respective positions of the various parts.

Like letters of reference indicate like parts in the different gures.

The object of my invention is to provide a simple, cheap, and eiiicient means for clamping together the standing seams of sheet-metal roofs, so that a saving of material may be effected in the seams themselves, the usual cap may be dispensed with, and the sheets or sections preparedat and sent out from the shop with the clampsso attached thereto that they may be easily and rapidly bent and compressed when the iiangcs of the sheets are connected together, thus enabling a roof to be laidvery rapidly and by comparatively unskilled artisans, all of which I accomplish substantially in the manner `hereinafter more particularly described and claimed.

Ain the drawings indicates the plates or sections of a shect-inetal roof, each of which is provided with the upturned flanges A.A2, which are in turn bent downwardly, forming depending flanges a a. A series of sheetmetal clamps, B, having iianges b bent upwardly between the ange a and part A', are attached to each sheet or section, said parts being bent over and made to'conforrn to the vertical and horizontal parts of said sections, as clearly shown in the drawings. Fig. 5 represents one of said clamps detached and as it is formed when applied to the plates. After placing a sufficient number of said clamps in position in the mannerstated upon a given sheet, the Bange a of the next succeeding sheet is placed thereover, as shown at the right in Figs. l and 2, when each of the clamps B is bent upwardly over the flange a, and thence downwardly and parallel with the part A2, as clearly shown in Figs. 2 and 6, said clamp when iinally bent forming siX parallel partsviz., b b b2 b3 b4, as shown at Figs. 2 and 6. When the parts B are thus bent over and compressed, the respective plates of the roof are securely connected together and require no further fastening.

The parts B may be placed upon the sheets and formed therewith in a crimping-machine, and shipped in this form, so that the plates may be laid in the desired positions with the iianges overlapping each other, when it is only necessary to bend the clamps B over the iiange of-the uppermost plate and in the direction indicated by the arrow in Fig. 2 to complete the work. It is thus apparent that with said improved clamp a roof may be laid very rapidly by unskilled workmen, and that a great saving of material maybe effected.

Having thus described my invention, I claim- 1. In a sheet-metal roof, the sections A, the edges` A4 A2 of which are respectively bent vertically and downwardly so as to form depending anges a a', in combination with a se ries of detachable sheet-metal cleats or clamps, B, one end of each being so bent as to conform to and clasp both sides of the iiange a, one portion of said clamp being parallel with the part A and the remaining portion bent upwardly, and thence downwardly so as to embrace the outside of the anges a A2, whereby two sections, A, may be held together, sul)A stantially as shown and described.

2. In a sheet-metal roof, the sections A, having upwardly-bent flanges A A2 and downwardly-bent flanges a a', in combination with a series of sheet-metal clamps bent alternately in opposi-te directions around and over the anges a a', respectively, so as to` form the parts b b b2 b3 b* approximately parallel with each other in the finished seam, substantially as and for the purposes set forth.

FRANK. E. SAGENDORPH.

Witnesses:

D. H. FLETCHER, J. B. HALPENNY.

IOO 

